Consumer prices · 13 categories · latest 2026-06-01
Source: International Monetary Fund. Data as of 2026-08-14. Collected by Living Inflation Data, HBS Innovations in Economic Measurement (IEM) Lab www.iemlab.org.
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2 recorded findings for this country, shown exactly as in the full quality register.
| Country | Source | Periods | Status | Series | Found | Detected by |
|---|---|---|---|---|---|---|
| Seychelles | IMF | 2017-01-01 | confirmed | SYC.CPI_CP07_*, SYC.CPI_CP08_* | 2026-09-02 | Single-month index anomaly |
| Two Seychelles divisions are wrong in January 2017 and in opposite directions: transport reads 131.2 between 101.8 and 104.1, communication 66.8 between 98.0 and 98.0. Communication is the cleaner case -- its neighbours are identical to three figures, so there is nothing for a real movement to hide in. Both return completely the following month. | ||||||
| Seychelles | IMF | 2009-01-01, 2010-01-01 | confirmed | SYC.CPI_CP03_*, SYC.CPI_CP10_* | 2026-09-02 | Possible index rebasing |
| Two January steps a year apart, and only one of them stays. Clothing goes 73.33 -> 53.82 in January 2009 (0.77x) and then climbs continuously back to 62.2 by September -- the Seychelles rupee was floated at the end of 2008 and this is a series moving hard in both directions around it. Education goes 80.44 -> 64.29 in January 2010, holds at 72.2 for three months, and is back to 80.44 -- its exact former value -- by May, which is a hole in the series rather than a price path. Neither is a base change. Separate from the two bad months in January 2017. The level RETURNS, which rules a base change out: a rebasing is permanent. That leaves a run of months the series recovers from -- too long for the single-month outlier rule, which needs the neighbours either side to agree, and too short to be a new base. Whether the run is bad data or a real episode is not established. | ||||||